Break away check valve

Details Break away check valve Break away check valve

1991-08-29

1992-09-01

Rivell, John

Fluid handling

Line condition change responsive valves

Direct response valves

1375157, 285915, F16K 1514

Patent

active

051431173

ABSTRACT:
A check valve assembly is disclosed for use with a pool or spa plumbing system and includes first and second hub sections connected together by a nut member. An insert member carrying an elastomeric diaphragm is sandwiched between the first and second hub members to permit fluid flow in a first direction and prevent fluid flow in a second reverse direction. The assembly is designed such that the nut member may be moved longitudinally along one of the hub sections to expose and permit removal of the insert member in a direction transverse to the longitudinal axis of the hub sections. The nut member and insert are configured to cooperate with each other such that the insert may only be mounted in the assembly facing in a predetermined direction.

REFERENCES:
patent: 286676 (1883-10-01), Belknap
patent: 383428 (1888-05-01), Messinger
patent: 2206356 (1940-07-01), Hutchings
patent: 2670757 (1954-03-01), Delany
patent: 3176712 (1965-04-01), Ramsden
patent: 3354903 (1967-11-01), Caruso
patent: 3463189 (1969-08-01), Fitzpatrick
patent: 3530878 (1970-09-01), Janton
patent: 3739801 (1973-06-01), Rudolph
patent: 3831628 (1974-08-01), Kintner et al.
patent: 4043574 (1977-08-01), Asano

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